17db96d56Sopenharmony_ci.. highlight:: c 27db96d56Sopenharmony_ci 37db96d56Sopenharmony_ci.. _boolobjects: 47db96d56Sopenharmony_ci 57db96d56Sopenharmony_ciBoolean Objects 67db96d56Sopenharmony_ci--------------- 77db96d56Sopenharmony_ci 87db96d56Sopenharmony_ciBooleans in Python are implemented as a subclass of integers. There are only 97db96d56Sopenharmony_citwo booleans, :const:`Py_False` and :const:`Py_True`. As such, the normal 107db96d56Sopenharmony_cicreation and deletion functions don't apply to booleans. The following macros 117db96d56Sopenharmony_ciare available, however. 127db96d56Sopenharmony_ci 137db96d56Sopenharmony_ci 147db96d56Sopenharmony_ci.. c:function:: int PyBool_Check(PyObject *o) 157db96d56Sopenharmony_ci 167db96d56Sopenharmony_ci Return true if *o* is of type :c:data:`PyBool_Type`. This function always 177db96d56Sopenharmony_ci succeeds. 187db96d56Sopenharmony_ci 197db96d56Sopenharmony_ci 207db96d56Sopenharmony_ci.. c:var:: PyObject* Py_False 217db96d56Sopenharmony_ci 227db96d56Sopenharmony_ci The Python ``False`` object. This object has no methods. It needs to be 237db96d56Sopenharmony_ci treated just like any other object with respect to reference counts. 247db96d56Sopenharmony_ci 257db96d56Sopenharmony_ci 267db96d56Sopenharmony_ci.. c:var:: PyObject* Py_True 277db96d56Sopenharmony_ci 287db96d56Sopenharmony_ci The Python ``True`` object. This object has no methods. It needs to be treated 297db96d56Sopenharmony_ci just like any other object with respect to reference counts. 307db96d56Sopenharmony_ci 317db96d56Sopenharmony_ci 327db96d56Sopenharmony_ci.. c:macro:: Py_RETURN_FALSE 337db96d56Sopenharmony_ci 347db96d56Sopenharmony_ci Return :const:`Py_False` from a function, properly incrementing its reference 357db96d56Sopenharmony_ci count. 367db96d56Sopenharmony_ci 377db96d56Sopenharmony_ci 387db96d56Sopenharmony_ci.. c:macro:: Py_RETURN_TRUE 397db96d56Sopenharmony_ci 407db96d56Sopenharmony_ci Return :const:`Py_True` from a function, properly incrementing its reference 417db96d56Sopenharmony_ci count. 427db96d56Sopenharmony_ci 437db96d56Sopenharmony_ci 447db96d56Sopenharmony_ci.. c:function:: PyObject* PyBool_FromLong(long v) 457db96d56Sopenharmony_ci 467db96d56Sopenharmony_ci Return a new reference to :const:`Py_True` or :const:`Py_False` depending on the 477db96d56Sopenharmony_ci truth value of *v*. 48